ISO 2557-1:1989
Plastics — Amorphous thermoplastics — Preparation of test specimens with a specified maximum reversion — Part 1: Bars
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本标准替代了:
Plastics — Amorphous thermoplastic moulding materials — Preparation of test specimens with a defined level of shrinkage — Part 1: Test specimens in the form of parallelepipedic bars (Injection moulding and compression moulding)
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https://www.iso.org/standard/7509.html
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